José L. J. Ledesma

Jose Ledesma
Researcher (PhD since March 2016) - Catchment Biogeochemistry and Modelling


My research aims to understand the hydrological and biogeochemical processes controlling the mobilization, transformation, and transport of solutes from land to surface waters that can support successful management strategies for aquatic resources. My empirical work focusses on processes operating at hillslope, riparian (near-stream), and catchment scales with the ambition to upscale those processes to the larger landscape scale. In addition, my research interest and expertise include process-based modelling for climate impact assessment on catchment hydrology and biogeochemistry. The core of both my empirical and modelling research is based on the study of organic carbon dynamics and their implications for the global carbon cycle and drinking water supply. I also work with nutrients, metals, base cations, silica, and sulfate.

Publikationer i urval

[19] Lannergård, E., Ledesma, J. L. J., Fölster, J., and Futter, M. N. An evaluation of high frequency turbidity as a proxy for riverine total phosphorus concentrations, Science of the Total Environment, In review.

[18] Lupon, A., Ledesma, J. L. J., and Bernal, S. (2018). Riparian evapotranspiration is essential to simulate stream flow dynamics and water budgets in a Mediterranean catchment, Hydrology and Earth System Sciences, Accepted.

[17] Bravo, A. G., Kothawala, D. N., Attermeyer, K., Tessier, E., Bodmer, P., Ledesma, J. L. J., Audet, J., Casas-Ruiz, J. P., Catalán, N., Cauvy-Fraunie, S., Colls, M., Deininger, A., Evtimova, V. V., Fonvielle, J. A., Fuß, T., Gilbert, P., Herrero Ortega, S., Liu, L., Mendoza-Lera, C., Monteiro, J., Mor, J. R., Nagler, M., Niedrist, G. H., Nydahl, A. C., Pastor, A., Pegg, Gutmann Roberts, C., J., Pilotto, F., Portela, A. P., Romero González-Quijano, C., Romero, F., Rulík, M., and Amoroux, D. (2018). The interplay between total mercury, methylmercury and dissolved organic matter in fluvial systems: A latitudinal study across Europe, Water Research, 144, 172-182, doi: 10.1016/j.watres.2018.06.064.

[16] Ledesma, J. L. J., Kothawala, D. N., Bastviken, P., Maehder, S., Grabs, T., and Futter, M. N. (2018). Stream dissolved organic matter composition reflects the riparian zone, not upslope soils in boreal forest headwaters, Water Resources Research, 54, doi: 10.1029/2017WR021793.

[15] O’Driscoll, C., Ledesma, J. L. J., Coll, J., Murnane, J. G., Nolan, P., Mockler, E., Futter, M. N., and Xiao, L. (2018). Minimal climate change impacts on natural organic matter forecasted for a potable water supply in Ireland, Science of the Total Environment, 630, 869–877, doi: 10.1016/j.scitotenv.2018.02.248.

[14] Bussi G., Whitehead, P. G., Gutiérrez-Cánovas, C., Ledesma, J. L. J., Ormerod, S. J., and Couture R. (2018). Modelling climate and land-use change impacts on nitrate and aquatic ecosystems in the River Wye (Wales), Science of the Total Environment, 627, 733-743, doi: 10.1016/j.scitotenv.2018.01.295.

[13] Gutchess, K., Jin, L., Ledesma, J. L. J., Crossman, J., Kelleher, C., Lautz, L., and Lu, Z. (2018). Long-term climatic and anthropogenic impact on stream water salinity in New York State: INCA simulations offer cautious optimism, Environmental Science & Technology, 52, 1339–1347, doi: 10.1021/acs.est.7b04385.

[12] Ecke, F., Levanoni, O., Audet, J., Carlson, P., Eklöf, K., Hartman, G., Mckie, B., Ledesma, J. L. J., Segersten, J., Truchy, A., and Futter, M. N. (2017). Meta-analysis of environmental effects of beaver in relation to artificial dams, Environmental Research Letters, 12, 113002, doi: 10.1088/1748-9326/aa8979.

[11] Ledesma, J. L. J., and Futter, M. N. (2017). Gridded climate data products are an alternative to instrumental measurements as inputs in rainfall-runoff models, Hydrological Processes, 31, 3283-3293, doi: 10.1002/hyp.11269.

[10] Ledesma, J. L. J., Futter, M. N., Blackburn, M., Lidman, F., Grabs, T., Sponseller, R. A., Laudon, H., Bishop, K. H., and Köhler, S. J. (2018). Towards an improved conceptualization of riparian zones in boreal forest headwaters, Ecosystems, 21, 297–315, doi: 10.1007/s10021-017-0149-5.

[9] Blackburn, M., Ledesma, J. L. J., Näsholm, T., Laudon, H., and Sponseller, R. A. (2017). Evaluating hillslope and riparian contributions to dissolved nitrogen (N) export from a boreal forest catchment, Journal of Geophysical Research – Biogeosciences, 122, 324-339, doi: 10.1002/2016JG003535.

[8] Erlandsson, M., Oelkers, E. H., Bishop, K., Sverdrup, H., Belyazid, S., Ledesma, J. L. J., and Köhler, S. J. (2016). Spatial and temporal variations of base cation release from chemical weathering on a hillslope scale, Chemical Geology, 441, 1-13, doi: 10.1016/j.chemgeo.2016.08.008.

[7] Oni, S. K., Futter, M. N., Ledesma, J. L. J., Teutschbein, C., Buttle, J., and Laudon, H. (2016). Using dry and wet year hydroclimatic extremes to guide future hydrologic projections, Hydrology and Earth System Sciences, 20, 2811-2825, doi: 10.5194/hess-20-2811-2016.

[6] Ledesma, J. L. J., Futter, M. N., Laudon, H., Evans, C. D., and Köhler, S. J. (2016). Boreal riparian zones regulate stream sulfate and dissolved organic carbon, Science of the Total Environment, 560-561, 110-122, doi: 10.1016/ j.scitotenv.2016.03.230.

[5] De Wit, H. A., Ledesma, J. L. J., and Futter, M. N. (2016). Aquatic DOC export from subarctic Atlantic blanket bog in Norway is controlled by seasalt deposition, temperature and precipitation, Biogeochemistry, 127, 305-321, doi: 10.1007/s10533-016-0182-z.

[4] Oni, S. K., Tiwari, T., Ledesma, J. L. J., Ågren, A., Teutschbein, C., Schelker, J., Laudon, H., and Futter, M. N. (2015). Local and landscape-scale impacts of clear-cuts and climate change on surface water dissolved organic carbon in boreal forests, Journal of Geophysical Research – Biogeosciences, 120, 2402-2426, doi: 10.1002/ 2015JG003190.

[3] Ledesma, J. L. J., Grabs, T., Bishop, K. H., Schiff, S. L., and Köhler, S. J. (2015). Potential for long-term transfer of dissolved organic carbon from riparian zones to streams in boreal catchments, Global Change Biology, 21, 2963-2979, doi: 10.1111/ gcb.12872.

[2] Ledesma, J. L. J., Grabs, T., Futter, M. N., Bishop, K. H., Laudon, H., and Köhler, S. J. (2013). Riparian zone control on base cation concentration in boreal streams, Biogeosciences, 10, 3849-3868, doi: 10.5194/bg-10-3849-2013.

[1] Ledesma, J. L. J., Köhler, S. J., and Futter M. N. (2012). Long-term dynamics of dissolved organic carbon: Implications for drinking water supply, Science of the Total Environment, 432, 1-11, doi: 10.1016/j.scitotenv.2012.05.071.

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